cellulose fire resistance

Advantages : Blow In Cellulose Insulation Tops Fiberglass

Here are considerable significant facts: cellulose insulation outperforms other insulations in certain key areas for you the homeowner. The goal is clear:  unnaturally keep your home cool in the summer and warm in the winter ( opposing temperature of exterior climate ). Cellulose is the clear winner when all categories are considered.

Blow in Cellulose Insulation is covered by the American Society for Testing and Materials Standard Specifications (ASTM). The ASTM covers several material properties, including:

  • R-Value
  • Flame spread
  • Smoldering combustion
  • Density
  • Corrosiveness
  • Odor emission
  • Moisture vapor absorption
  • Fungi resistance
  • Adhesive/cohesive strength (spray on only)

Blown In Cellulose Benefits

Cellulose is superior to other insulation materials and benefits and cons must be considered separately on each home project. 

Fiberglass R Value Comparison Cellulose Fiberglass

Cellulose insulation has a functional lifetime of more than 50 years!

Blown in cellulose insulation is produced primarily from post-consumer wood pulp (recycled newspapers), typically accounting for roughly 85 % of the insulation by weight. Cellulose insulation is treated with fire-retardant. Borates and boric acid are used most commonly and account for the other 15 % of the cellulose insulation by weight.

Cellulose Insulation
Mold Resistance

Cellulose significantly decreases the risk of mold even beginning to form. Thanks to its chemical treatment, mold doesn't grow on cellulose insulation. Cellulose insulation absorbs moisture, redistributes it and lets the attic/wall/ceiling dry in a controlled manner.

Pest Control

Cellulose insulation is pest-resistant insulation that is a great addition to your pest prevention plan. This insulation works on most common household pests such as cockroaches, ants, beetles, earwigs, silverfish, termites, etc.

Air / Vapor Barrier

Air infiltration is almost as important as R-value in the thermal performance of a building. Infiltration of unconditioned ambient air means that heating and cooling systems must expend more energy to compensate for the infiltration.

Sound Control

Cellulose provides very effective sound control to minimize outside noises and between rooms (if the interior walls are insulated). Many people only focus on the energy savings that can be achieved with blow in cellulose insulation but overlook the benefits that come from improved sound insulation. If you have ever walked into a house that is not insulated you will immediately notice that noises from outside of the house are “louder” than in an insulated home.

Fire Resistant

Besides saving you money, cellulose insulation also provides extremely effective fire protection capabilities. Tests conducted by Underwriters Laboratories Inc.® show that Cellulose insulation provides an effective 1 hour fire rating. This will slow the spread of a fire allowing you more time to escape any danger. This is because cellulose is specially treated using Borate Compound Chemicals as a fire retardant in the manufacturing process to meet or exceed all fire safety requirements.

Josiah Schubring
Josiah Schubring
Green Attic Insulation Client March 2021
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Positive: Professionalism, Quality, Responsiveness, Value These guys were fantastic! We had bad ice dam issues all around our building. I called Green attic because I heard they were the best! James and his teams came in and immediately started working on all of our ice issues. After the ice and snow was taken care of they right away start on any and all damage. We had a small time frame they needed to get it done in. Not only did they get it done in time but, they absolutely exceeded our expectations! Super Happy with Green attic’s work. We’ll be using them again if ever needed.
Tamara Herrera
Tamara Herrera
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David, Romulo, and his entire crew are such a great team! It all started with the initial assessment by David, he was so thorough in explaining what needs to be done and why. He was even able to trouble shoot some issues on the spot! He had no problem getting dirty and crawling in to what I would consider a very small access panel, to show me pictures of the problems and come up with a good treatment plan. They were able to get me an appointment rather quickly and Romulo and his crew arrived ready to go! They were timely, courteous, careful, and communicated frequently with me. I was confident in their abilities to complete the job! I would definitely use Green Attic for any future needs and highly recommend this team!
Michael Goodman
Michael Goodman
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Tim and his crew then came out to remove the old insulation, clear/kill all the mold in the attic, remedy issues that were causing the mold in the first place (insufficient ventilation and blocked soffits), and finally re-insulate our attic/basement. The work was intense, but Tim's transparency with the process and willingness to educate us on the problems that we were having were what sold us. We also appreciated that Tim was able to work in some added value into his services without charging us the difference.

Plant-Based Loose-Fill Blown In Cellulose

Cold Rooms Over A Garage? Cellulose. Existing Walls With Fiberglass Performing Poorly? Cellulose Can Solve It. New Construction? Cellulose. Existing Attic Needs Upgraded R-Value? Cellulose

weatherblanket weather blanket cellulose insulation underwriters laboratories plant based cellulose

Premium Plant Based Cellulose

Cellulose insulation is one of the greenest products in the world.

Green Attic Insulation Sources Its Cellulose From Wisconsin, USA learn more about Champion Cellulose @ https://www.championinsulation.com/Homeowners/index.php
Loose Fill Premium Class 1 Cellulose Insulation is the best choice for attic floors. It is blown in with high pressure truck mounted machines. This R-Value ( Resistance Value) protection against heat escape from the living space while providing superior heat protection in the hot summer by preventing heat to travel through the insulation to the living space ceilings.


Green Attic’s Building Science principles are the foundation of our work :

  1. Provide Longer Lasting And Better Performing Building Materials
  2. Focus On Home Comfort and Efficiency, Air Quality, Performance
  3. Green Building – Using Plant-Based Natural Materials When Possible With The Lowest Carbon Footprint 

Why Green Attic Uses Cellulose 

Blow-in Cellulose Insulation is installed in empty spaces in the structural framing to slow down the transmission of heat out in winter and reduce drafts/cold. Cellulose Insulation is used to control heat flow for the following reasons:


Cellulose Home Durability benefits:


Eliminates cold spots that may cause condensation problems resulting in the growth of mold and mildew and the staining of structural components as well as finish materials

Cellulose Comfort benefits:


Cellulose creates warmer surfaces and reduces chills and drafts caused by radiation and convection.

Prevents overheating due to excessive solar gains.


Cellulose Energy Efficiency Benefits:


Insulating with Cellulose = Results:  never before seen instant monthly energy savings which costs less as prices rise. 


Cellulose Insulation Creates Air Trapped Between Layers and divides the air space to reduce heat transfer in winter from the living side and heat intrusion from the attic side in summer. 


Here are considerable significant facts: cellulose insulation outperforms other insulations in certain key areas for you the homeowner. The goal is clear:  unnaturally keep your home cool in the summer and warm in the winter ( opposing temperature of exterior climate ). Cellulose is the clear winner when all categories are considered. 

  1. Cellulose Manages Moisture
  2. Reduced BTU’s during manufacturing / Recycled Production
  3. Blocks Radiant Heat Transfer
  4. Quiet Home Through Sound Absorption  
  5. Cellulose Is The Highest Recycled Content Among Its Peers 
  6. Cellulose Disperses Moisture and increases building component longevity. 
  7. Eliminates Convective Air Movement 
  8. Plant Based Material 
  9. Higher Density = Better R-Value
  10. Cellulose Insulation Blown-in Method uses high pressure to completely fill gaps and voids around irregular objects such as conduit, pipes , framing etc. . 

Insulation Principles: 1. Heat moves from hot to cold Cellulose Prevents This Transfer 2. Air and water move from high pressure to low-pressure Cellulose Balances Room Temperature by Eliminating Cold Spots In Winter And Hot Spots On The Ceiling In Summer  3. Moisture migrates from wet to dry Cellulose Dense Packs The Framing Assembly / Stud Cavity eliminates drafts and moisture resulting from opposing temperatures.  


Comfortable Doesn't Have to be Costly

Attic insulation can reduce heating bills by up to 50%. Get a free estimate from our team of insulation experts.

  • No more drafty rooms
  • Better air quality
  • Pay less on your heating & cooling bills
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                       We are BPI Certified Contractor

BPI has the highest standards in energy efficiency and green building. That’s why all our technicians are BPI certified.  BPI Requires professionals to stay up to date, so you know that everyone licensed through BPI is fully up to date on new research & technology.

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    Contact us today to learn more. Green Attic would love to discuss your spray foam insulation project.

    Model Total Rebates Program Name
    BayREN Home Plus Program - $1,000
    Federal Tax Credit - Air Source Heat Pump - $300
    BayREN Home Plus Program - $1,000
    BayREN Home Plus Program - $1,000
    BayREN Home Plus Program - $1,000
    BayREN Home Plus Program - $800
    BayREN Home Plus Program - $800
    BayREN Home Plus Program - $800
    BayREN Home Plus Program - $800
    BayREN Home Plus Program - $800
    BayREN Home Plus Program - $800